Sirup pump



April 14, 1931.

C. L. BASTIAN sIRUP PUMP Filed Aug. 15, 41928 Patented Apr. 14, 1931UNITED STATES PATENT oFFlcE CHARLES L. BASTIAN, OF CHICAGO, ILLINOIS,ASSIGNOR T THE BASTIAN-BLESSING COMPANY, 0F CHICAGO, ILLINOIS, ACORPORATION OF ILLINOIS r snmp PUMP Application filed August 15, 1928.

This invention relates to sirup pumps for soda fountain, and its objectis to provide a pump of simple and novel construction adapted to delivera predetermined charge of sirup at each operation.

Another object is to provide a pump of simple and novel construction foruse in horizontal position on a sirup jar and adapted to deliver acharge and recharge itself at each operation.

In the accompanying drawings illustrating a selected embodiment of theinvention:

Figure 1 is a sectional view of a sirup jar with my improved pumptherein.

Figure 2 is an enlarged sectional View of the pump on line 2-2 of Fig.1.

Fig. 3 is a section, similar to Fig. 1, of the outer end portion of thestructure to show the lengthened button for regulating the 2o stroke ofthe valve; and

Figure 4 is a transverse sectional view on line l-l of Fig. 2.

Referring to the drawings, the casing or barrel 5 of the pump is securedhorizontally in a-wall of the sirup jar 6 in any suitable manner. A head7 is secured in the inner end of the casing and it has a nipple 8provided with al passage 9 which communicates with abent inlet tube 1()secured at one end to the nipple and with its other end extending to thebottom of the jar. A head 11 is secured in the outer end of the casingand arms 12 project outwardly therefrom. A valve stem 13 operatesthrough the head 11 and it carries a button handle 14 on its outer endand a valve head 15 on its reduced end 13. The valve head has aplurality of openings 16 and it is made fast to the reduced inner end ofthe stem by a threaded connection and -a lock nut 17. A valve disk 18 ismounted freely on the reduced portion of the stem and it is adapted tolie fiat against the. valve head to cover and close the openings 16. Acollar 19 on the valve disk engages a shoulder 13" on the stem whichlimits the movement of the valve disk away from the valve head. Anoutlet pasage 2O is provided in headr11 at the lower part thereof and awasher 21 at the inner end of this passage is adapted to be engaged bythe valve disk for sealing said open- Serial No. 299,835.`

ing. A ball valve 22 is'located at the inner end of passage A9 within acage 23, and a helical spring 24 is arranged in the casing and is seatedagainst the inner head 7 and the valve head 15. The jar contains asupply oi' sirup and a charge is drawn into the pump aiter every chargeis delivered thereby. ln normal position Fig. 2 the spring pushes valvehead 15 against valve disk 18 and the latter to the limit oic itsmovement against shoulder 13". At this time the pump contains a chargeof sirup and the ball `valve is closed. When pressure is applied to thebutton 1-/1 the valve head will be pushed in, carrying the valve disk,but the play of the valve disk on the reduced end of the stem permitsthe disk to be unseated by the sirup within the casing on the inwardmovement of the stem, and the sirup on the inlet side of the valve williiow through the perforations 16. During the inward movement of thevalve stem, the ball valve is closed, and during this movement thespring is compressed and the charge of sirup previously drawn into thecasing has passed through the perforations 16 to the discharge side ofthe valve. lVhen pressure on the button handle is released, spring 24,which has been compressed, expands to quickly return the valve to itsnormal position at the discharge end of the casing, Fig. 2, with thehead against the disk and the disk sealing the perforations 16.` On theoutward movement of the valve, underthe iniluence of the spring,thesirup in front oi' the valve is discharged quickly through thepassage 20 into a glass or other receptacle, and a t `the same time theball valve is unseated and a fresh charge of sirup is drawn intothccasing behind the valve. In practice, the operator will place his palmagainst the button and grasp the arms 12 with his fingers and give aquick pressure upon the button, like a grasp of the hand, moving thevalve inward quickly; and then the operator will release his hand fromthe pump and the spring will return the valve and stem to initialposition and at the same time discharge the charge of sirup as required.The pump is free from complicated or delicate parts, it operates easilyand quickly, and it can be readily cleaned and kept in a sanitarycondition.

To vary the amount of the charge, diterent buttons may be used. In Fig.3 I have shown a button 14; which projects farther along the stem'fthanbutton let and limits the inner travel of Vthe valve head 'to thatextent and correspondingly reduces the charge.

Changes in the form, construction and arrangement 'of parts maybe madewithout departing fromthe spirit or sacrificing the advantages of theinvention, and I reserve the right to make all such changes asfalli'within the scope of the following claims-` I claim: i *i 11.,"Ih'ecombinationfof a--sirup .j ar, a pump :mounted therein fandcomprising a casing having :an inlet at one Vend and an outlet .at theother end, a valve for said inlet, a stem operating through the outletend of the casing, l*a perforated valve .head onthe'inner 'end o-tnestem within the casing, a valve disk loosely mounted yon the stembetween the outerlend ofthe casing andthe valve head andadapted'toclosethe perforations in the valve `head `.anda 'springywithin the casing between 'the inner endv thereofand the valve head andoperating to force the valve. head against the valve disk in closedposition against the'outer fend of the casing. Y 2. vIn a pump of theclass described, a

casing, a head iXed at-one end of said casing including avnipple havingan inlet tube connected-thereto and having a passage therein extendingfrom said'tube to the interior of `sai'd casing, a Cage 4fixed to said'head at the.

inner end oi' said passage, a ball valve in said cage for controllingcommunication through Isa-id passage, another head at the other end of'said 'casing- .having an outletV "passage and an laxial bore therein,`a plunger @extended through said :axial bore, a perorated valveheadlontheinnerfend oisaid plunger within saideasin'g,=a lvalve discloosely mountfed :on the `plungerbetween the second head and the valvehead-for closing the iperfo-rav Y tions :in said valve head, .and aspring in said casingeX-tended between said'val-ve head and thefirsthead `and operating 'to `force the valve head against `the valve dise toclose` passage "through the perforations in said v Vvalve head and to-close `commiin'ication through said outlet passage.

CHARLES v-BAS'IIIA-IV.

